diff --git a/monkey/monkey_island/linux/install_mongo.sh b/monkey/monkey_island/linux/install_mongo.sh
index 701a7063e..87d27c28f 100644
--- a/monkey/monkey_island/linux/install_mongo.sh
+++ b/monkey/monkey_island/linux/install_mongo.sh
@@ -6,23 +6,23 @@ MONGODB_DIR=$1 # If using deb, this should be: /var/monkey/monkey_island/bin/mon
 if  [[ $os_version_monkey == "Ubuntu 14.04"* ]] ;
 then
 	echo Detected Ubuntu 14.04
-    export tgz_url="https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-ubuntu1404-4.0.8.tgz"
+    export tgz_url="https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-ubuntu1404-3.6.12.tgz"
 elif [[ $os_version_monkey == "Ubuntu 16.04"* ]] ;
 then
 	echo Detected Ubuntu 16.04
-	export tgz_url="https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-ubuntu1604-4.0.8.tgz"
+	export tgz_url="https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-ubuntu1604-3.6.12.tgz"
 elif [[ $os_version_monkey == "Ubuntu 18.04"* ]] ;
 then
 	echo Detected Ubuntu 18.04
-	export tgz_url="https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-ubuntu1804-4.0.8.tgz"
+	export tgz_url="https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-ubuntu1804-3.6.12.tgz"
 elif [[ $os_version_monkey == "Debian GNU/Linux 8"* ]] ;
 then
 	echo Detected Debian 8
-	export tgz_url="https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-debian81-4.0.8.tgz"
+	export tgz_url="https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-debian81-3.6.12.tgz"
 elif [[ $os_version_monkey == "Debian GNU/Linux 9"* ]] ;
 then
 	echo Detected Debian 9
-	export tgz_url="https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-debian92-4.0.8.tgz"
+	export tgz_url="https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-debian92-3.6.12.tgz"
 else
 	echo Unsupported OS
 	exit -1